//
//  UIView+Extension.swift
//  WeiBo
//
//  Created by 黄跃奇 on 16/9/19.
//  Copyright © 2016年 itheima. All rights reserved.
//

import UIKit

extension UIView {
    
    //扩展计算属性
    //x坐标
    var x: CGFloat {
        get {
            return frame.origin.x
        } set {
            frame.origin.x = newValue
        }
    }
    
    //y坐标
    var y: CGFloat {
        get {
            return frame.origin.y
        } set {
            frame.origin.y = newValue
        }
    }
    
    //宽度
    var width: CGFloat {
        get {
            return frame.size.width
        } set {
            frame.size.width = newValue
        }
    }
    
    //高度
    var height: CGFloat {
        get {
            return frame.size.height
        } set {
            frame.size.height = newValue
        }
    }
    
    //中心x
    var centerX: CGFloat {
        get {
            return center.x
        } set {
            center.x = newValue
        }
    }
    
    //中心y
    var centerY: CGFloat {
        get {
            return center.y
        } set {
            center.y = newValue
        }
    }
    
    //获取或者设置size的大小
    var size: CGSize {
        get {
            return frame.size
        } set {
            frame.size = newValue
        }
    }
    
    
}


















